Pencil-sharpener.



No. 843,999. PATENTED FEB. 12, 190?.

' W. B. GARY.

PENCIL SHARPENER.

APPLICATION FILED MAY 9, 1906.

[NVEZYTOR (9 W A TTORNE Y5 WITNESSES.-

n-m NORRIS F'ETERS 1:0,, wasnuycrazv, n. c.

nrrnn PATENT i rrcn PENGHL SHAHPENF- l lo. 843,999.

Sipecification of VERMUNT.

Letters Patent. Patented Feb. 12, 1907.

Application filed May 9,1906. Serial No. 315,992.

lb (11H whom, 712% In/my con/(11:77.0:

Be it known that I, lViLLLiir E. CARY, a citizen of the United States, residig at Springfield, in the count. of Windsor and State of Vermont. have i ented a new and us l Pencil-Sharpener, of which the chowing' is a specification.

he present invention relates to a pencilsharpening: device, which has for its object to provide a pencil-sharpener of sii ple, inexpensive, 9 1 lsnbstantial coiistrr. "lion.

ln can" '1 out the invention 1 employ a rota 1 ch is provided with a circnla e, and arrainigcd in s" is a relatively static... This pencil-holder 1S SZlPpOTt, w.

n H (A of construewhich will be "more hill described hereinafter and l 'linall'j set forth in the cl -s appended hereto.

ln the acco 'lipanfing drawings, vhieh ill; strate one einbodiirent of the in\ Fig;- ure 1 is a perspective view of pencil-sharpener, showing the same in operation. Big. 2 is a vertical transverse section, and Figs. 3 and 4: are perspective views of the parts of the pencil-holder.

Referring to the drawings, 1 represents a rotatable casing, which is a structure having a cylindrical wall 2, for ned integral with the head 3 and closed by the stationary head i, that has cast therewith or otherwise sec ed thereto a supporting-bracket 5. 'l he head 3 has extending axiallytfroin its inner surface a post 5, that makes a working "lit in the tubular extension or bearing 6, extending inwardl from the center of the stationar head or structure 4-, so that the casing is free to rotate. The two parts of the device are held together ly means of an external post 7, having; a reduced threaded portion 8, of which the shoulder engages the stationary head i and the threa led portion extends through a central opening in said head and screws into a tapped bore in the ternal post 5, Fig. 2. The post 7 is shaped e a wrench, so a to fasten or unn the stationary head or suporeierzf at: eve the post 7, is a pencil- This comprises a radialljFadjirst- 9, having a bore 10, which 1 's axis slightly inclined to the srira 2c of the rotatable vel nionnted in this bore inner end of which is provided with spr jaws 12, which are adapted to grip the penci. to be sharpened. On the or ter end of the sleeve is a grooved Wheel or 13, which rotates with the sleeve.

s sleeve is rotated b means of the rota- '"eiiiber thro'figgh the PN'GTLGT of the post 7 and crossed endless belt nis belt preferably takes the form. of a and the post 7 is provided with ed substantially in line with l wheel 14-, so as to receive the The base-piece 9 is provided. with a h which extends a setport r, ho; d er 8.

i is a sleeve 11, the

. I re pencil-holder disposed with is axis as an angle i 0 that of the the casin is to produce "the 1 it e oo ec; or hax 1.

internal wan Ol proper reialion be.ween the pencil and the r (lllL-\Vil00l. This internal wall is prefh erably raced wi' ei'ner 'clo'.h, or cured by gluing the same to the casing or means of any suitable mechanical device.

Attached to the casing is a handle 18, by which the sharpener is operated. The rotatable casing can be rotated in either direction, and by means of the cross-belt the porn oil-holder with the pencil held therein is rot aied about its axis in the direction opposite to the direction of the said casing. The result of the combined rot alien of the grindingsurface and the pencil is that the grinding speed is maLeriallyincreased, so that the penoil can be quickly sharpened. To operate the deivce, the pencil to be sharpened is in- 3 serted illLO the holder as far as it can be placed, and with one hand still on the pencil to feed it inwardly the movable element of the sharpener is rotated with the other hand. The pressure on the pencil is preferably applied at the end, so that the pencil can more freely rotate and less friction is 1 produced to be overcome by the cross-beltn a ship of sandpaper, 1e like, which may be sedriving connection. It is to be noted that the casing being hollow serves as a receptacle for the particles ground off from the pencil, and the same can be readily emptied by unscrewing the external post and detaching the rotating member of the casing which retains the particles or grindings.

I have described the principle of operation of the invention, together with the apparatus which I now consider to be the best embodiment thereof; but I desire to have it understood that the apparatus shown is merely illustrative and that the invention can be carried out by other means.

What I claim as new, and desire to secure byLetters Patent, is

1. In a pencil-sharpener, a support, a bearing in the support, a revoluble abrading member, a spindle on the member mounted in the said bearing, a post having a removable threaded engagement with the spindle, a revoluble pencil-holder, and operating connections between the post and pencil-holder arranged toro'tate the latter and serving as a means for preventing the spindle from accidentally disengaging from the post.

2. I11 a pencil-sharpener, a support, a bearing in the support, a revoluble abrading member, a spindle on the member removably mounted in the bearing of the support, a post having a removable threaded engagement with the spindle, a shoulder arranged to engage the support to prevent endwise displacement of the spindle, a revoluble pencilholder, and operating connections between the post and pencil-holder arranged and adapted to rotaie the pencihholder and at the same time tighten the connection between the post and the spindle.

3. In a pencil-sharpener, the combination of a cylindrical member having an internal post that is threaded, a head having a tubular bearing in which the post rotates, a

threaded device engaging the threads of the said post for holding the member and head together and for rotating with the former, said device having a circumferential groove, a pencil-holder mounted on the head and having a circumferential groove, and a driving-belt running in the said grooves for rotating the holder by the rotation of said member.

4:. In a pencil-sharpener, the combination of a support, a bearing in the support, a hollow revoluble abrading member having an internal abrading-surface and provided with a hollow spindle mounted in the bearing in the support, a shouldered post having a threaded extension interiorly engaging the hollow spindle and having a bearing against the support to prevent endwise displacement of the spindle, a revoluble pencil-holder, and operating connections between the post and the pencil-holder for transmitting motion from the former to the latter.

5. In a pencil-sharpener, the combination of a rotating member having an internal grinding-surface, means for rotating there with, a relatively stationary pencil-holder, and an elastic cross-belt and pulley transmission between said means and the pencilholder, said pencil-holder comprising an adjustable base-piece and sleeve rotatably mounted therein with its axis disposed at an angle to the grinding-surface of said member, spring-jaws carried by said sleeve for holding the pencil, and a grooved pulley on the sleeve forming part of said transmission.

In testimony that I claim the foregoing as my own I have hereto aflixed my signature in the presence of two witnesses.

WILLIAM E. CARY.

Witnesses M. L. LAwnnNoE, ALICE M. WHEELER. 

